Start up STAR-CCM+ in a manner that is appropriate to your working environment and select the New Simulation option from the menu bar.
Continue by importing the hexahedral mesh and naming the simulation. The grid has been saved in the .ccm file format, which contains all necessary cell, vertex and boundary information for the problem geometry.
doc/tutorials/hexMesh subdirectory of your STAR-CCM+ installation directory and select file hex.ccm.
hexMesh.sim.The tutorial continues with Creating a Macro.